Unfortunately, the "Try Now" functionality wasn't something we could carry over to the new documentation site. It's not something we wanted to lose, but the advantages offered by the new site, including GitHub integration (so that you can suggest edits directly), far better localization support, and better CMS tooling, together with the fact that it unifies all documentation for developers into one portal, made it a must-have.

If you're not already using it, I'd highly recommend using Postman with our Collection:

It provides far more precise control of your queries for testing purposes, along with a built-in system to manage a variety of configurations, so that you can have a saved config for each of your Title IDs.